package Homework;

import java.util.Scanner;

public class Exchange_weight {
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.println("请输入想换算的磅数：");
		double lb = input.nextDouble();
		double kg = lb * 0.4535924;
		System.out.println("换算后的千克数为" + kg + "kg");
	}
}
